Colourless is a synonym of uninspired.
As adjectives the difference between colourless and uninspired
is that colourless is having little or no colour while uninspired is not inspired; dull or dry.
As a verb uninspired is
(uninspire).
colourless
Alternative forms
* colorless (American spelling)
Adjective
(
en adjective)
Having little or no colour.
(of a liquid) Water white.
Lacking in interest or variety.